Lock



Ei'mt' E". FRASER, (53.7 BETE-01T, MCHGAN.

Speeication of Letters Patent.

latented Jelly E. 19%@ Application ed .Febrirewigv5 2G, lsl. Serial No. 278,151

- provide a safety device adapted' for use in eoiniection with the steering mechanism of automobile, whereby the latter may be rendered incapable of' use byzunauthorized persons,

- A. farther object oi the inventionis to rovide a saety look or this eharaoterfwlneh mechanism of laatornobiles Without any 'e Whatever in the construction of suoli WWA.ing mechanism and Whiehis @empara tively simple in construction, inexpensive to manufacture and readily applied by thel ser of the automobile Without the aid oi:-v

a mechanic.

With these and other obgeets in view, the .invention coi-isists in the novel combination oi parts hereinafter more fully deseriberh;

and pointed ont in the claims. in 'the drawings accompanying and ornn ing part of thisv specification,

Figure l is a vertical sectional vievvof the portion or hea-d of the steering mechanism of an automobile. -Witli the cap removed and ray improved safety look sub,-

. stitnted therefor;

Fig. 2 is a crosssectional view taken en the line Qfw @if Fig.' looking inthe niev reetion of the arrows in said'lig, l;

53 is a detail sectional view showing for operating my improved safety Y pin l Fig. i is an inverted plan view, broken awa-y, snowing the underside or the cap embodying Iny nnproved lock; and

Fig. 5' 'is a sectional viewr taken on line 'f-ioi2 Fig. a, looking in the direction of the arrows.

'lhe Same -oharaetersof reerencedesignate the saine parts in all the figures oi' lthe drawings.

fin the embodiinento'f the invention herein illustrated, 2 designates the usual head carried on the upper end of the steering poet n antornobiie, said head being prov1ded. internal gear teeth 3 for engagement' capable of being installed onltbe steer? withv thel pinions 4 which are rotatably' mounted independently of each. other at equidistant points on a frame 5 secured to the top of the steering post. The usual. shaft 6 is provided carrying apinion 7 at its lower end for engagement with the pinions 4g and adapted to receive the steering Wheel 8 at its upper end, whereby on rotation of. the steeringl Wheel such rotationis transmitted through the pinions 7 and e to the internal gear teeth 3, .thereby rotating the head 2 and the steering post for steering the vehicle.

The head 2 as ordinarily constructed is provided With exterior `screw threads as 'shown at 9, Figs. l and 3, for the reception of an interiorly threaded cap having an openingat its center for the passage of the shaft 6. in the present instance .the shaft earries a bushing l() thereon, having at its lower end an' annular shoulder 1l to prevent withdrawal of the shaft Gironi the cap or casing member. A collar 27' may also be carried by the shaft above said bushing on which the steeringxwhee'l 8 may rest.

lvl-y improved. loeking'mechanism isI ear-l ried by a cap nien'iber which is intended to take the place of Athe e ap ordinarily used. The lbiver portion 'of this improved cap orfeasing'rnernber is identical in construetion with that or the cap in ooininon useand is provided around its interior periphn ery 'with screwl threads adapted to engage the serevv threads 9 of the head 2. rPhe cap or easing 12- is provided with an upward extension 13 eeeentrically formed with relaltient@ the cap 12', as shown in Figs. l and '2. Witlnn the extension 13 is slidably mounted a pllinger 14k having. an lenlarged head 15 provided With recess in which is seated one end of a helicall spring 16, the other4 endofsaid spring abutting against a plate l? which .is secured by any suitable means, snob as screws as shown in Fig. 2, Within an opening' in they side Wall of the easing member 13.' A look 18, si1ch as 'a Yale or other reliable-lock, is provided, having atumbler Y) 'which is adapted to operate against thev head 15 of vthe plunger thereby toretract it against thef tension of the spring 16. 'in thepresent viinprovenienti the shaft 6' is adapted to slide within the easing vineinber 13,: and belovv'the shoulder l1 a Washer orfeollar()l may be carried by said shaft, as shown' Fig..Y l, for eofperation miesen operating the steering mechanism, of a removable cap member adapted to be attached to said head, a shaft Slidable Within said member and carrying a pinion adapted te be `slid into and out of engagement with said operating pinions, a collar carried by said shaft, a spring-pressed plunger within the cap member and adapted tobe projected into the path of said collar for locking said shaft against sliding movement, a lug pivoted Within the cap member and adapted to be engaged by said collar when the shaft is slid in one direction and to be disengaged by Said Collar when the shaft is slid in the opposite direction, and a spring-pressed pin lar the slidable Within said cap member and adapted to coact with said pivoted lug whereby when the lug is in engagement with the eolpin is retracted Within the cap member and when 'the .lug with the collar the pin is projected into the path of the operating pinions.

In testimony that I elaine the as my own, l have hereto a'ixed my signature in the presence of two Witnesses.

NRMAN l?. FRASER,

foregoing lfVitneeses 2 GEO. H. KEYES? STANLEY M. KEYES.

is out of enoaement 2e 

